DTC143E

$0.03

Description：TRANS PREBIAS NPN 50V
Series：*

SKU:7aaaa424e991 Category: Single, Pre-Biased Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS PREBIAS NPN 50V
Series：*
Mfr：onsemi
Package：Bulk
Resistors Included：-
Transistor Type：-
Current - Collector (Ic) (Max)：-
Voltage - Collector Emitter Breakdown (Max)：-
Resistor - Base (R1)：-
Resistor - Emitter Base (R2)：-
DC Current Gain (hFE) (Min) @ Ic, Vce：-
Vce Saturation (Max) @ Ib, Ic：-
Current - Collector Cutoff (Max)：-
Frequency - Transition：-
Power - Max：-
Grade：-
Qualification：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-

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DTC143E

Overview

The DTC143E is an NPN Digital Transistor (BRT) manufactured by onsemi, designed to replace a single transistor and its external biasing resistors. It integrates a monolithic bias network consisting of a series base resistor (R1) and a base-emitter resistor (R2). The device features a collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. Typical internal resistance values are R1 = 4.7 kΩ and R2 = 4.7 kΩ, though variants with different ratios exist. Power dissipation is rated at 200 mW. It is available in surface-mount packages such as SOT-23 (SST-3) and SOT-346.

Feature Summary

Integrates a single NPN transistor with a monolithic bias resistor network to eliminate external components.
Simplifies circuit design by removing the need for discrete input resistors.
Reduces printed circuit board space and overall component count.

Applications

General-purpose switching circuits
Driver circuits for logic interfaces
Inverter circuits requiring simplified biasing

Procurement Notes

Verify the specific suffix code to confirm the exact resistance ratio (e.g., EK vs. TM) and package type, as the base part number covers multiple configurations. Ensure the selected variant meets the required AEC-Q101 qualification if automotive application is intended, as standard versions may not be qualified. Confirm RoHS compliance status for the specific manufacturing lot.

Selection Notes

Select the appropriate resistance ratio based on the driving logic level and desired base current. Standard ratios include 4.7k/4.7k or 1k/4.7k. Verify that the 100 mA collector current and 50 V voltage ratings exceed the maximum load requirements. Check thermal constraints to ensure power dissipation remains within the 200 mW limit under operating conditions.

Part Context

This component belongs to the DTC143 family of Bias Resistor Transistors. Related parts include the DTC143EM3T5G and DTC143EKAT146. The DTC143E designation typically refers to the general product line or specific variants like DTC143ECA or DTC143TM3T5G, which share the same core NPN structure but differ in resistance values and packaging.

Replacement Considerations

Direct substitutes include ROHM Semiconductor DTC143EKAT146 and other DTC143 series devices from different manufacturers. Verify pinout compatibility and electrical parameters such as hFE and saturation voltage before substitution.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.